Conversion progress

Online OST to PST file conversion service

This online converter of OST files to PST files makes it possible to transfer data from one format to another using any device and any operating system (Windows, Android, iOS, Mac OS, etc).

Our OST to PST online conversion service does not require access to Exchange Server, Windows Domain Controller or Microsoft Outlook. All you need to do is upload your OST file to the server. Next, you will receive a link to download the converted PST file containing all of the data from the original OST file, including: e-mails, contacts, appointments, reminders, tasks, notes, calendars, journals, attachments, etc.

How to convert OST to PST online

A step-by-step description of the online conversion of OST files of any version to Microsoft Outlook PST files:

Wait for the file to be uploaded to the service and the OST to PST conversion process to be over

Download the converted PST file with your data

How to convert an OST file to a PST file online

The .ost to .pst converter service allows you to convert the following types of OST files:

OST files in Unicode format (Microsoft Outlook version 2007 or later)

OST files in ANSI format (Microsoft Outlook versions 97-2003 that are more than 2GB in size)

OST files created using all versions of Microsoft Exchange Server

Encrypted OST files that use any type of encryption

Password-protected OST files

OST files created with 32-bit and 64-bit versions of Microsoft Outlook

The benefits of the online OST to PST file conversion service:

The .ost to .pst converter service works on any device that is connected to the Internet

Does not require you to have Microsoft Windows installed

Does not require access to a Microsoft Exchange Server

Does not require authentication by Windows Domain Controller

Does not require you to have Microsoft Outlook installed on your device

How to convert OST to PST file online

Notes for the Microsoft OST 2 PST converter service:

The size of the converted PST file may be considerably smaller than the size of the original OST file.

The converted PST file will be saved in Unicode format as a *.PST file that is used as the default file format in Microsoft Outlook 2007 or later. This format allows you to store more than 2GB of data in a single file.

The files are stored for 10 days starting from the time that the source file is uploaded to the server;